A Discourse on the Study of the Law of Nature and Nations

It is a social history book. These and many other causes conspired to unite the nations of Europe in a more intimate connexion and a more constant intercourse, and of consequence made the regulation of their intercourse more necessary, and the law that was to govern it more important. In proportion as they approached to the condition of provinces of the same empire, it became almost as essential that Europe should have a precise and comprehensive code of the law of nations, as that each country should have a system of municipal law.